A friend got a dynamite platinum and it is surprisingly strong. I helped him tune it. I just got my 1st werks, it's a B5. I disagree with the statement werks are hard to tune. It's a clockwork modified but Neal told me what pipe and plug i had to run for the engine to work properly. The wrong plug, pipe and fuel can turn any engine into a nightmare. If you are new and are starting with a buggy, get something real tame, put a steel flywheel on it with carbon clutch shoes and learn how to drive before you get a power engine.